Constructing parton convolution in effective field theory

被引：54

作者：

Chen, JW ^{[1
]}

Ji, XD ^{[1
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.87.152002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Parton convolution models have been used extensively in describing the sea quarks in the nucleon and explaining quark distributions in nuclei (the EMC effect). From the effective field theory point of view, we construct the parton convolution formalism which has been the underlying conception of all convolution models. We explain the significance of scheme and scale dependence of the auxiliary quantities such as the pion distributions in a nucleon. As an application, we calculate the complete leading nonanalytic chiral contribution to the isovector component of the nucleon sea.

引用

页码：152002 / 152002

页数：4

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